Awning window



1962 G. M. KEULEMANS 3,058,175

AWNING WINDOW Filed July 24, 1959 2 Sheets-Sheet 1 Taqi. v.

LLU u! M w If I 22 /5 ll 48 46 i M mi INVENTOR 62/5 vw/ /ll. A/EY/LE/MWVS TTORNEY Oct. 16, 1962 G. M. KEULEMANS AWNING WINDOW Filed July 24, 1959 2 Sheets-Sheet 2 INVENTOR 5'4 7w; /1 #504 EM4/VS 227M dos" ATT RNE United States Patent 3,058,175 AWNING WINDUW Gustaf M. Keulemans, Barrington, R.I., assignor to General Bronze Corporation, Garden City, N.Y. Filed July 24, 1959, Ser. No. 829,437 8 Claims. (till. 42)

This invention relates to an improved self-compensating linkage and locking arrangement for awning-type windows.

An object of the invention resides in so constructing the window that the lower sash may be unlocked and partially opened prior to the unlocking and opening of all or any of the remaining sashes to effectuate a controllable opening, closing and ventilation.

A further object of the invention resides in providing the sashes with looking devices that automatically lock the upper sashes while the lower is still partially open and thereafter lock the lower sash after it has been completely closed.

A further object of the invention resides in providing a window of the character referred to wherein the sashes are moved to open and closed positions and locked and unlocked by means of a simple yet effective linkage.

These and other objects will be understood from or pointed out in the following description.

A typical awning window has a frame supporting a plurality ofsashes arranged in a vertical series, each pivoted to swing or open outwardly on horizontal pivots. The individual sashes are pivoted at their respective top corners to operating slide bars which are vertically movable along the opposite sides of the frame. The sashes are also connected by short links to the frame so that by sliding the operating bars downwardly or upwardly, the window can be fully opened or fully closed, respectively.

Where windows of this kind are mass produced, slight variations in the dimensions of the operating parts occur and this in the past has made it difiicult to close all the sashes of a window tightly. Moreover, because of even minute differences in length, some of the window parts are loaded or strained far more than others during normal operation of the window. This also tended to keep one or more sashes of the window partly open when they should all be tightly closed. The present invention eliminates this difficulty and provides a simple linkage and positive automatic locking arrangement for every sash in a window of this kind.

In accordance with the invention irf one specific embodiment there is provided in each sash operating linkage in an awning-type window a lost-motion connection which compensates for minor dimensional variations and which permits the sashes to close in sequence with a final sliding motion. This final movement gives a tight seal between the sashes and Weatherstripping on the frame and makes possible the simplified and improved locking action provided according to the invention. The lock parts used in this arrangement are simple and inexpensive but yet they positively lock and hold closed all of the sashes of such a window thus preventing unauthorized opening rom outside.

A better understanding of the invention together with a fuller appreciation of its many advantages will best' be gained from the following description given in connection with the accompanying drawings wherein:

FIGURE 1 is a perspective view of an awning-type window embodying features of the invention;

FIGURE 2 is a somewhat enlarged side view of the window showing the upper sash closed but not locked, and the lower sash still partly open;

FIGURE 3 is a view similar to FIGURE 2 but showing both sashes locked;

FIGURE 4 is an enlarged detailed view of the lock parts of the upper sash; and

FIGURE 5 is an enlarged detailed view of the lock parts of the lower sash.

The window 10 shown in FIGURE 1 comprises a frame 12 having a sill 14, right and left jambs 16 and 18 respectively, and a header 2t Slidably and pivotally mounted Within frame 12 are an upper sash 22 and a lower sash 24, which are adapted to open as indicated in FIGURE 1 or to close as shown in FIGURE 3. Fastened to and extending from the upper corners of sash 22 is a pair of curved arms 26, the outer end of one arm being pivoted at 23 to a vertical slide-bar 30 vertically mounted on jamb 16, the other arm 26 being similarly pivoted at a point (not seen) to a slide-bar 32 slidably mounted on jamb i8. Attached somewhat below the top of sash 22 on its opposite sides at points 34 are respective ones of the short links 36. The lower end of each of these links is pivoted at 38 to a block 40 slidably mounted on the adjacent jamb. Each block 40, as seen in FIGURE 4, is normally pulled downwardly by ten-. sion spring 44 towards the hollow tubular box 42 which is fixed to the adjacent jamb. This box surrounds and anchors the lower end of the spring 44. This arrangernent provides lost motion connection between the pivots 38 and the frame.

Lower sash 24 is mounted on the frame in a way similar to the upper sash. Projecting from the upper corners of this lower sash are curved arms 46, similar to arms 26, which are pivoted to slide-bars 3t and 32 at points 48, respectively. Pivoted at points 50 to this sash somewhat below arms 46 are short links 52, like links 36, whose lower ends are pivoted at 54 on an adjacent sliding block 56, like blocks 40. Each of these in turn is normally drawn by a tension spring 58 downwardly towards a hollow tubular box 60 fixed to a respective jamb.

Slide-bars 3t) and 3 2 are vertically slidable in unison in guideways on the inner faces of jambs I6 and 18. The upward sliding movement of these bars will move the sashes 22 and 24 from the position shown in FIG- URE 1 to that shown in FIGURE 2 and finally to that shown in FIGURE 3. To the slide-bar St is pivoted at 62 a push bar 64 which at its lower end is pivoted at 66 to a crank arm 68. This crank arm is secured to and moves with a rotatable shaft 70 which is journaled between the jambs.

At the opposite side of the frame a similar push bar 76 is pivoted at 78 to the adjacent slide bar 32 and at 74 to a crank arm 72 similar to the crank arm 68 and similarly mounted on the shaft 70.

A link 94 is pivoted at one of its ends at 92 to one of the jambs, and is provided at its other end with a pin 94 which slides in the slot fit in the crank arm 68.

At the opposite side of the frame a link 84 similar to the link 94 is pivoted at one of its ends at 86 in a casing 86 carried by the adjacent jamb 32. A pin 82 is mounted on the opposite end of the link 84 and slides in a slot Si) in the crank arm 72.

Within the casing 36 is a worm wheel 88 indicated in dotted lines in FIGURE 1 which is actuated by a manually operable worm $0 on the end of a crank handle.

Thus, when the crank handle is actuated, the crank arms 68 and 72 will be moved on their pivots and will actuate the push bars 64 and 76 which will in turn move the slides 30 and 32 upwardly or downwardly depending upon the direction of rotation of the shaft 76 As the cranks 68 and 72, and the associated parts move as described, the pins 94' and 82 will move either up wardly or downwardly in the slots 8 and 80.

When the slide bars 33 and 32 move upwardly from the position shown in FIGURE 1 to that shown in FIG- URE 2, the upper sash is first drawn fiush against the frame but is not yet locked. Simultaneously the lower sash will be drawn inwardly but will remain slightly open. Further upward movement of the slide bars causes the upper sash to move upwardly to the closed position shown in FIGURE 3. This movement will cause the lock fingers 100 on the upper sash to engage with the adjacent block 42 to lock the upper sash in position. This final movement is permitted by the lost motion connection between the blocks 40 and the pivots 33, which lost motion connection is controlled by the spring 4-4.

The final locking of the lower sash is accomplished during this upward movement of the slides by the engagement of the pins 94 and 82 on the links 68 and 72 with the hook members .110. Moreover, during this upward sliding movement, the upper edge of the upper sash seats beneath a lip 102 on the header of the frame, and the upper edge of the lower sash seats beneath a weatherstripping 106.

I claim:

1. In an awning-type window which comprises a frame, including a header, jambs and sill, vertical slides vertically slidable in said jambs, upper and lower sashes including upper and lower horizontal rails and vertical side rails pivoted at their upper corners to said slides, links pivoted to the side rails of said sashes and pivoted to said jambs for pivotal and vertical movements, crank arms pivotally connected to said jambs adjacent said sill, push bars pivotally connected to said crank arms and to said slides, locking elements mounted on the side rails of said upper sash, complemental locking elements for said upper sash mounted on said slides, locking elements on the lower sash, links pivoted to said jambs and slidably connected with said crank arms and having locking elements complemental to the locking elements on the lower sash, and means for moving said sashes pivotally and vertically upwardly to first engage said complemental locking elements for the upper sash and subsequently to engage said complemental locking elements for the lower sash.

2. The combination of elements recited in claim 1 wherein locking elements on the upper sash are in the form of upwardly opening hook-shaped members, and the locking elements on the lower sash are in the form of downwardly opening hook-shaped elements.

3. The combination of elements recited in claim 1 wherein said links are pivoted to blocks movable within housings secured to the jambs of said frame and wherein said housings constitute the complemental locking elements for the upper sash.

4. In an awning'type window which includes a frame having header, sill and channeled jambs, a sash having upper and lower horizontal rails and vertical side rails, slides arranged for vertical movement within said channels, means pivoting the upper corners of said sash to said slides, housings within said channels of said jambs, blocks slidably mounted in said housings, links pivoted to the sides of said sash and to said slidable blocks and springs mounted in said housings and operatively connected to said blocks for controlling the movement thereof and in turn the movements of said links.

5. In an awning-type window comprising a frame having jambs, header and sill, slides vertically mounted for vertical movement in said jambs, upper and lower sashes pivoted to said slides adjacent their upper corners, links pivotally connected to the side rails of said sashes and pivotally connected to said jambs for both pivotal and vertical movements, a rotatable shaft extending between said jambs, crank arms on said shaft, push bars pivotally connected to said crank arms and to said slides and means for rotatably moving said shaft and pivotally moving said crank arms whereby said sashes are opened and closed, said lower sash being provided with locking elements and said crank arms being provided with longitudinal slots and links pivoted to said jambs and provided Lil with pins slidable in said slots to act as complemental locking elements for the first mentioned locking elements upon closing of the lower sash.

6. In an awning-type window comprising a frame having jambs, header and sill, slides vertically mounted for vertical movement in said jambs, upper and lower sashes pivoted to said slides adjacent their upper corners, links pivotally connected to the side rails of said sashes and pivotally connected to said jambs for both pivotal and vertical movements, a rotatable shaft extending between said jambs, crank arms on said shaft, push bars pivotally connected to said crank arms and to said slides and means for rotatably moving said shaft and pivotally moving said crank arms whereby said sashes are opened and closed, said lower sash being provided with locking elements and said crank arms being provided with longitudinal slots and links pivoted to said jambs and provided with pins slidable in said slots to act as complemental locking elements for the first mentioned locking elements upon closing of the lower sash, said upper sash and frame being provided with complemental locking elements, and means for moving the locking elements on said upper sash into engagement with the complemental locking elements on the frame and for moving said pins into engagement with the complemental locking elements on the lower sash.

7. In an awning-type window comprising a frame having jambs, header and sill, slides vertically mounted for vertical movement in said jambs, upper and lower sashes pivoted to said slides adjacent their upper corners, links pivotally connected to the side rails of said sashes and pivotally connected to said jambs for both pivotal and vertical movements, a rotatable shaft extending between said jambs, crank arms on said shaft, push bars pivotally connected to said crank arms and to said slides and means rotatably moving said shaft and pivotally moving said crank arms whereby said sashes are opened and closed, said lower sash being provided with locking elements and said crank arms being provided with longitudinal slots and links pivoted to said jambs and provided with pins slidable in said slots to act as complemental locking elements for the first mentioned locking elements upon closing of the lower sash, said upper sash and frame being provided with complemental locking elements, and means for moving the locking elements on said upper sash into engagement with the complemental locking elements on the frame and for moving said pins into engagement with the complemental locking elements on the lower sash, said pins being moved into engagement with the complemental locking elements on the lower sash subsequent to the engagement of the complemental locking elements on the upper sash.

8. In an awning-type window which includes a frame having header, sill and channeled jambs, a sash having upper and lower horizontal rails and vertical side rails, slides arranged for vertical movement within said channels, means pivoting the upper corners of said sash to said slides, housings within said channels of said jambs, blocks slidably mounted in said housings, links pivoted to the sides of said sash and to said slidable blocks and springs mounted in said housings and operatively connected to said blocks for controlling the movement thereof and in turn the movements of said links, said side rails of said sash being provided with locking elements and said housings being provided with portions acting as locking elements complemental to the locking elements on said sash.

References Cited in the file of this patent UNITED STATES PATENTS 2,667,950 Bancroft Feb. 2, 1954 2,693,622 Brenner Nov. 9, 1954 2,856,649 Reynaud Oct. 21, 1958 2,901,065 Hauck Aug. 25, 1959 2,905,981 Brenner Sept. 29, 1959 2,952,882 Reynaud Sept. 20, 1960 

